Definition of Mumsnetter in English:

Mumsnetter

noun

British
  • A person, typically a mother, who reads or posts on the online forum Mumsnet.

    ‘Mumsnetters suggest sippy cups or sports bottles to reduce the high risk of spills’

Origin

Early 21st century: from Mumsnet, the proprietary name of a parenting website and discussion forum.

Pronunciation

Mumsnetter

/ˈmʌmznɛtə/